[
   {
      "timestamp":"2011-01-12T00:00:00.000Z"
   },
   {
      "timestamp":"2011-01-13T00:00:00.000Z",
      "market":"spot",
      "quality":"automotive",
      "placement":"preferred",
      "placementish":["a", "preferred"],
      "index":100.000000
   },
   {
      "timestamp":"2011-01-14T00:00:00.000Z",
      "market":"spot",
      "quality":"automotive",
      "index":100.000000
   },
   {
      "timestamp":"2011-01-15T00:00:00.000Z",
      "placement":"preferred",
      "placementish":["a", "preferred"]
   }
]